Thread: D1 300tdi EGT Gauge

steve I have got my stuff through the post....do you know whether it is possible to extend the wires that are on the end of the sensor?

as it is going to be no where near long enough for where I want to put the guage.

Where are you putting it DB? I ran mine around the front of the motor and through the main loom grommet on the firewall. Had plenty of length from memory (on a D1).

I think officially you need to extend it using thermocouple extension wire so that you keep the accuracy, but not sure practically how much difference it would make if you just hooked up some normal copper wire as an extension.

Dick Smith have thermocouples with wire for $10, so you could get one of those and cut the thermocouple off the end and just use the wire as an extension. Pretty sure its different types of wire for +ve and -ve so you need to get them round the right way.

Steve.

I'm hoping to put mine up high near the interior light so would need to come through the fire wall and up through the A pillar...and across it looks like a very small real of wire I would be surprised if it comes into the cab at all to be honest

Pretty sure the cable is 2m long. Looking at some of the other thermocouples they come with a 4m option.
You're definitely going to need more like 4m (maybe more) to get up the A pillar near the interior light.

If you've got an industrial instrument place anywhere near you that's probably the best place to get some extension wire.

I've just done a bit more research and seems you can get close to 10% error if you use copper wire for the extension, so not an option.

Steve

bugger I reckon 4 meters would of done it you know its only 5 from front to back for RCA cable in the car

I just realized that I never posted pics of my install like I was going to.

Usual location for the thermocouple.


Boost sensor mounted to the firewall. I fitted a t-piece in the line to the waste-gate actuator and then fed that into the boost sensor. You can see the braided cable for the thermocouple just below the boost sensor. They both run in through a bung behind the windscreen washer bottle and across the dash under the radio to the meter.


I put the meter in the unused switch panel under the clock. With the centre blanks removed, it didn't require much plastic removal. I then made an aluminium fascia for it and glued it on.


With regards to extending the thermocouple lead, the manual for the thermocouple states that the cable cannot be "cut or spliced". It doesn't say anything about extension cables but I think any discontinuity in the cable has the potential to cause errors.

Looks good Paul.
What have you done with the MAP sensor wires? Did you connect them up to the gauge permanently, and when you want to see it just choose the sensor via the menu?
Or was it not that simple...

Steve

Finally fitted auber METER to my D1

AND an el cheapo boost gauge with remote sender.

my fip timing seems retarded, max boost 10 psi ,egt max 550
will adjust timing to 1.68 mm over next few days

THE $10 EGT probe is fine, maybe only 15 mm long,
my experience with gas turbines is i cannot recall an egt probe MUCH over 40 MM IN AN EXHAUST NOZZLE UP to 1 meter diameter ,
but they use 10 to 14 probes normally for a good sample.

so IMHO size DOES NOT matter regarding probe length,
gases swirl and mix at a high velocity post combustion...

next up an e boost controller, turbo will then do exactly as i tell it :}

RegardS
OZ